llvm-svn: 28581

RET chain, value1, sign1, value2, sign2, ...

llvm-svn: 28510

llvm-svn: 28505

vector arguments, not three.

llvm-svn: 28504

llvm-svn: 28499

llvm-svn: 28498

llvm-svn: 28497

llvm-svn: 28496

llvm-svn: 28488

llvm-svn: 28483

llvm-svn: 28481

llvm-svn: 28475

the copyto/fromregs instead of making the X86ISD::CALL selection code create
them.

llvm-svn: 28463

llvm-svn: 28441

llvm-svn: 28440

FORMAL_ARGUMENTS nodes include a token operand.

llvm-svn: 28439

return argument pops the hidden struct pointer if present, not the caller.

For example, in this testcase:

struct X { int D, E, F, G; };
struct X bar() {
  struct X a;
  a.D = 0;
  a.E = 1;
  a.F = 2;
  a.G = 3;
  return a;
}
void foo(struct X *P) {
  *P = bar();
}

We used to emit:

_foo:
        subl $28, %esp
        movl 32(%esp), %eax
        movl %eax, (%esp)
        call _bar
        addl $28, %esp
        ret
_bar:
        movl 4(%esp), %eax
        movl $0, (%eax)
        movl $1, 4(%eax)
        movl $2, 8(%eax)
        movl $3, 12(%eax)
        ret

This is correct on Linux/X86 but not Darwin/X86.  With this patch, we now
emit:

_foo:
        subl $28, %esp
        movl 32(%esp), %eax
        movl %eax, (%esp)
        call _bar
***     addl $24, %esp
        ret
_bar:
        movl 4(%esp), %eax
        movl $0, (%eax)
        movl $1, 4(%eax)
        movl $2, 8(%eax)
        movl $3, 12(%eax)
***     ret $4

For the record, GCC emits (which is functionally equivalent to our new code):

_bar:
        movl    4(%esp), %eax
        movl    $3, 12(%eax)
        movl    $2, 8(%eax)
        movl    $1, 4(%eax)
        movl    $0, (%eax)
        ret     $4
_foo:
        pushl   %esi
        subl    $40, %esp
        movl    48(%esp), %esi
        leal    16(%esp), %eax
        movl    %eax, (%esp)
        call    _bar
        subl    $4, %esp
        movl    16(%esp), %eax
        movl    %eax, (%esi)
        movl    20(%esp), %eax
        movl    %eax, 4(%esi)
        movl    24(%esp), %eax
        movl    %eax, 8(%esi)
        movl    28(%esp), %eax
        movl    %eax, 12(%esi)
        addl    $40, %esp
        popl    %esi
        ret

This fixes SingleSource/Benchmarks/CoyoteBench/fftbench with LLC and the
JIT, and fixes the X86-backend portion of PR729.  The CBE still needs to
be updated.

llvm-svn: 28438

llvm-svn: 28409

llvm-svn: 28357

arguments at once.

llvm-svn: 28327

llvm-svn: 28326

llvm-svn: 28324

it doesn't currently use/maintain the chain properly.  Also, make the
X86ISelLowering.cpp file 80-col clean.

llvm-svn: 28320

llvm-svn: 28265

llvm-svn: 28139

llvm-svn: 28131

Refactor TargetMachine, pushing handling of TargetData into the target-specific subclasses.  This has one caller-visible change: getTargetData() now returns a pointer instead of a reference.

This fixes PR 759.

llvm-svn: 28074

passing by value.

llvm-svn: 28015

from each vector. e.g.
        shuffle(G1, G2, 7, 1, 5, 2)
==>
        movaps _G2, %xmm0
        shufps $151, _G1, %xmm0
        shufps $216, %xmm0, %xmm0

llvm-svn: 28011

FORMAL_ARGUMENTS SDOperand in the return result vector.

llvm-svn: 28009

for now.

Patch contributed by Alexander Friedman.

llvm-svn: 27994

llvm-svn: 27992

llvm-svn: 27989

llvm-svn: 27988

- Fixed vararg support.

llvm-svn: 27985

llvm-svn: 27980

llvm-svn: 27975

llvm-svn: 27972

llvm-svn: 27961

llvm-svn: 27959